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All results from a given calculation for C5H8 (Bicyclo[1.1.1]pentane)

using model chemistry: wB97X-D/cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D3H 1A1'
Energy calculated at wB97X-D/cc-pVTZ
 hartrees
Energy at 0K-195.269053
Energy at 298.15K 
HF Energy-195.269053
Nuclear repulsion energy179.964395
The energy at 298.15K was derived from the energy at 0K and an integrated heat capacity that used the calculated vibrational frequencies.
Vibrational Frequencies calculated at wB97X-D/cc-pVTZ
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A1' 3133 2995 0.00      
2 A1' 3067 2932 0.00      
3 A1' 1564 1495 0.00      
4 A1' 1145 1095 0.00      
5 A1' 919 879 0.00      
6 A1" 1011 967 0.00      
7 A2' 3124 2987 0.00      
8 A2' 970 928 0.00      
9 A2" 3127 2989 121.03      
10 A2" 1269 1213 39.84      
11 A2" 867 829 5.50      
12 E' 3129 2992 65.85      
12 E' 3129 2992 65.93      
13 E' 3061 2927 83.61      
13 E' 3061 2927 83.82      
14 E' 1509 1443 0.87      
14 E' 1509 1443 0.87      
15 E' 1274 1218 2.33      
15 E' 1274 1218 2.33      
16 E' 1125 1075 0.34      
16 E' 1125 1075 0.34      
17 E' 914 874 0.64      
17 E' 914 874 0.64      
18 E' 549 525 0.25      
18 E' 549 525 0.25      
19 E" 1225 1171 0.00      
19 E" 1225 1171 0.00      
20 E" 1157 1106 0.00      
20 E" 1157 1106 0.00      
21 E" 1038 993 0.00      
21 E" 1038 992 0.00      
22 E" 801 765 0.00      
22 E" 801 765 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 25880.9 cm-1
Scaled (by 0.956) Zero Point Vibrational Energy (zpe) 24742.1 cm-1
See section III.C.1 List or set vibrational scaling factors to change the scale factors used here.
See section III.C.2 Calculate a vibrational scaling factor for a given set of molecules to determine the least squares best scaling factor.
Rotational Constants (cm-1) from geometry optimized at wB97X-D/cc-pVTZ
ABC
0.24252 0.24252 0.20966

See section I.F.4 to change rotational constant units
Geometric Data calculated at wB97X-D/cc-pVTZ

Point Group is D3h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.937
C2 0.000 1.234 0.000
C3 1.069 -0.617 0.000
C4 -1.069 -0.617 0.000
C5 0.000 0.000 -0.937
H6 0.000 0.000 2.024
H7 0.000 0.000 -2.024
H8 0.902 1.847 0.000
H9 -0.902 1.847 0.000
H10 1.149 -1.704 0.000
H11 2.050 -0.143 0.000
H12 -2.050 -0.143 0.000
H13 -1.149 -1.704 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11 H12 H13
C11.54951.54951.54951.87321.08712.96032.25872.25872.25872.25872.25872.2587
C21.54952.13812.13811.54952.37052.37051.09011.09013.15542.47002.47003.1554
C31.54952.13812.13811.54952.37052.37052.47003.15541.09011.09013.15542.4700
C41.54952.13812.13811.54952.37052.37053.15542.47002.47003.15541.09011.0901
C51.87321.54951.54951.54952.96031.08712.25872.25872.25872.25872.25872.2587
H61.08712.37052.37052.37052.96034.04742.88452.88452.88452.88452.88452.8845
H72.96032.37052.37052.37051.08714.04742.88452.88452.88452.88452.88452.8845
H82.25871.09012.47003.15542.25872.88452.88451.80343.56012.29753.56014.1009
H92.25871.09013.15542.47002.25872.88452.88451.80344.10093.56012.29753.5601
H102.25873.15541.09012.47002.25872.88452.88453.56014.10091.80343.56012.2975
H112.25872.47001.09013.15542.25872.88452.88452.29753.56011.80344.10093.5601
H122.25872.47003.15541.09012.25872.88452.88453.56012.29753.56014.10091.8034
H132.25873.15542.47001.09012.25872.88452.88454.10093.56012.29753.56011.8034

picture of Bicyclo[1.1.1]pentane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C5 74.376 C1 C2 H8 116.596
C1 C2 H9 116.596 C1 C3 C5 74.376
C1 C3 H10 116.596 C1 C3 H11 116.596
C1 C4 C5 74.376 C1 C4 H12 116.596
C1 C4 H13 116.596 C2 C1 C3 87.249
C2 C1 C4 87.249 C2 C1 H6 127.188
C2 C5 C3 87.249 C2 C5 C4 87.249
C2 C5 H7 127.188 C3 C1 C4 87.249
C3 C1 H6 127.188 C3 C5 C4 87.249
C3 C5 H7 127.188 C4 C1 H6 127.188
C4 C5 H7 127.188 C5 C2 H8 116.596
C5 C2 H9 116.596 C5 C3 H10 116.596
C5 C3 H11 116.596 C5 C4 H12 116.596
C5 C4 H13 116.596 H8 C2 H9 111.616
H10 C3 H11 111.616 H12 C4 H13 111.616
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at wB97X-D/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.051      
2 C -0.165      
3 C -0.165      
4 C -0.165      
5 C -0.051      
6 H 0.070      
7 H 0.070      
8 H 0.076      
9 H 0.076      
10 H 0.076      
11 H 0.076      
12 H 0.076      
13 H 0.076      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.000 0.000 0.000 0.000
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -31.789 0.000 0.000
y 0.000 -31.789 0.000
z 0.000 0.000 -31.916
Traceless
 xyz
x 0.063 0.000 0.000
y 0.000 0.063 0.000
z 0.000 0.000 -0.127
Polar
3z2-r2-0.253
x2-y20.000
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 8.261 0.000 0.000
y 0.000 8.261 0.000
z 0.000 0.000 7.466


<r2> (average value of r2) Å2
<r2> 91.376
(<r2>)1/2 9.559